They would work reversed, i can make them any size , The main body is 36 inches long and 8 3/8 inches wide, I have a few sets of original NOS tanks but they are not for sale, If you have seen all the posts iam carrying on the Hickey name, I own the name Hickey Enterprises, Iam reproducing his parts 100% original and also custom, If i build tanks and other parts i will tell people they are reproduction but they are 100% correct perfect,I have not tracked how much the tanks will cost but i will let you know monday,Iam doing this for the love of it, Its not about $$, The one thing i would like to do with the new tanks is install baffles to git rid of fuel slosh, I will post some photos of reproduction hickey tanks i built for my race truck